r this is the "cbs morning news" for thursday, october 4, 2012. "cbs morning news" good morning. good to be withyou. i'm terrell brown. today both president obama and mitt romney return to the campaign trail following last night's debate in denver. as expected the economy dominated their first one on one showdown. romney came out swinging as the candidates argued tax policy, budget deficit and health care and looks like the aggressive approach may have paid off for the republican challenger. cbs news poll shows romney made strides of uncommitted voters that he needs to win over in order to take over the white house. we go to denver first. >> reporter: terrell, good morning. seems like mitt romney may have received that boost he was hoping for after putting the president on the defensive for much of the night. romney lauded his own accomplishments as governor of massachusetts while continuing to highlight the failed promises of the obama administration. the first presidential debate started with a hand shake and a romantic moment. >> 20 years ago i became the luckiest man on earth